CN211222765U

CN211222765U - Blackboard for English teaching

Info

Publication number: CN211222765U
Application number: CN201922441312.7U
Authority: CN
Inventors: 侯小惠; 张晓慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-11
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a blackboard for english teaching, the utility model discloses a blackboard body, be provided with marking device on the blackboard body and erase the device, the upper and lower both sides of blackboard body all are provided with the guide rail, the length direction setting of blackboard body is all followed to the guide rail, and marking device all follows with erasing the device the guide rail slides and sets up on blackboard body. The utility model discloses a set up marking device, can be when carrying out english teaching convenient roll-off four-wire check, the teacher teaches according to four-wire check, has good guide effect to the learner of english study initial stage, makes things convenient for the normalized english of writing of learner; the utility model discloses the erasing device that sets up, erasing the in-process, the continuous luffing motion of blackboard eraser makes and erases the effect better.

Description

Blackboard for English teaching

Technical Field

The utility model relates to an english teaching technical field, concretely relates to listen blackboard for english teaching.

Background

In the english teaching process at the initial stage, the learner's main learning content is the composition letter of 26 of english, masters the listening and speaking reading and writing to 26 letters of english, and in the training process of listening and speaking reading, the teacher all can help the learner to train through the mode of leading reading and asking for answering, but the training in the aspect of writing is comparatively troublesome, and the teacher lets the student write through the writing mode imitation of self-observation textbook through the mode of arranging the homework and writes, then the teacher revises and annotates again, the problem that can bring like this is: firstly, learners cannot acquire the writing sequence of letters on a textbook and can only imitate shapes, so that writing errors or non-normations are caused; secondly, each learner has more or less comprehension deviation of the writing mode in the textbook, and the learner can imitate writing errors or lack of specification, which causes reduction of learning efficiency and greatly increase of workload of the teacher if only the mode of modification and annotation by the teacher. And when the teacher teaches a normative writing mode, the teacher generally needs to draw four-line grids on the blackboard, and the teacher explains the writing key while writing in the writing process, so that the learner can understand uniformly, but the teacher easily has an irregular problem when drawing lines again.

Moreover, when the course is changed, the content on the blackboard needs to be erased, the erasing work is time-consuming and labor-consuming usually by students in the course of the course, if the content written on the blackboard is more, and moreover, the traditional blackboard is written by chalk, so that the students can absorb a large amount of dust in the erasing process, and the health of the students can be influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: provided is a blackboard for English teaching, which is convenient for erasing written contents.

In order to solve the problem, the utility model discloses a blackboard body, be provided with marking device on the blackboard body and erase the device, blackboard body's upper and lower both sides all are provided with the guide rail, the length direction setting of blackboard body is all followed to the guide rail, and marking device all follows with erasing the device the guide rail slides and sets up on blackboard body.

As optimizing, the marking device includes first walking frame and the marking off subassembly of setting on first walking frame, the marking off subassembly slides along vertical direction and sets up on first walking frame, and is provided with locking Assembly between marking off subassembly and the walking frame, the marking off subassembly includes the marking off component of the vertical range of four groups, and fixed connection between the adjacent marking off component, every group marking off subassembly all include marking off pen and fixed block, marking off pen salient in one side near blackboard body of fixed block.

Preferably, the marking device of the present invention further comprises a mounting frame, the mounting frame is slidably connected to the walking frame, at least one marking assembly is slidably disposed on the mounting frame, the sliding direction of the marking assembly is along a direction perpendicular to the blackboard, the marking assembly is connected to a push-pull assembly, the push-pull assembly comprises a connecting member and a push-pull rod, the connecting member is U-shaped, an open end of the connecting member is fixedly connected to the fixing block, one end of the push-pull rod slides through the bottom of the connecting member and is provided with a limiting disc, the other end of the push-pull rod slides through the mounting frame, a spring pin is disposed between the push-pull rod and the mounting frame, a first limiting hole and a second limiting hole are disposed on the push-pull rod, and when the spring pin is inserted into the first limiting hole, the push-pull rod pulls the marking assembly to be out of contact, the spring is in a compressed state; when the spring pin is inserted into the second limiting hole, the scribing component is contacted with the blackboard under the action of the spring, and acting force does not exist between the scribing component and the push-pull rod.

As optimizing, the upper end of fixed block is provided with the spliced pole, the lower extreme of fixed block be provided with spliced pole assorted connecting hole, and be provided with the tight bolt in top on the lateral wall of connecting hole, the spliced pole that is located the fixed block of downside stretches into to the connecting hole of the fixed block that is located the upside to through the tight bolt fastening in top.

As optimizing, one side that the fixed block is close to the blackboard is provided with the marking off pen mounting hole, is provided with the locking bolt on the pore wall of marking off pen mounting hole, and the end of locking bolt stretches into in the marking off pen mounting hole, and rotates and be connected with the arc.

As optimizing, erasing the device and including second walking frame, the blackboard eraser of slip setting on second walking frame and drive blackboard eraser luffing motion's drive assembly, the blackboard eraser slides along vertical direction and sets up on second walking frame, and the medial surface and the blackboard body of blackboard eraser contact, and the upside of blackboard body is provided with first rack, drive assembly includes first gear and the connecting rod that is used for connecting first gear and blackboard eraser, first gear combines with first rack to be connected, and the rotation plane of first gear is on a parallel with blackboard body place plane, is provided with the eccentric post on the first gear, the one end of connecting rod articulates on the eccentric post, and the other end of connecting rod articulates on the blackboard eraser.

As optimizing, the utility model discloses still be provided with dust collector on the erasing device, dust collector includes air suction pipe, induced draft fan and dust collection box, and on the medial surface of the blackboard eraser of the inlet scoop equipartition of air suction pipe, induced draft fan passes through the derailleur drive and rotates, is provided with the second gear on the input shaft of derailleur, and the downside of blackboard body is provided with the second rack, and the second gear is connected with the meshing of second rack, the dust collection box intercommunication is on induced draft fan's air outlet, and the both sides of dust collection box are provided with the ventilation filter screen.

As optimization, the utility model discloses the both sides of blackboard body are provided with the gag lever post.

The utility model has the advantages that:

1. the utility model discloses a set up marking device, can be when carrying out english teaching convenient roll-off four-wire check, the teacher teaches according to four-wire check, has good guide effect to the learner of english study initial stage, makes things convenient for the normalized english of writing of learner;

2. the utility model has a certain pretightening force between the spring and the blackboard, when the consumption of the consumption type marking pen, such as chalk, is shortened, the utility model can still mark on the blackboard by the elasticity of the spring;

3. the marking device of the utility model can be freely expanded and removed, and can further expand the use scenes, such as the study of mathematical geometry or the study of music staff;

4. the erasing device provided by the utility model can continuously swing the blackboard eraser up and down in the erasing process, so that the erasing effect is better;

5. the utility model discloses a dust collector can use the handwriting condition of erasing the chalk and writing, can reduce scattering of dust, reduces the influence of dust to the health of people.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic cross-sectional view taken along the line A-A in FIG. 1;

FIG. 3 is an enlarged schematic view at C of FIG. 2;

FIG. 4 is a schematic cross-sectional view of the anchor block;

FIG. 5 is a schematic cross-sectional view of B-B of FIG. 1;

FIG. 6 is an enlarged schematic view at D of FIG. 5;

fig. 7 is an enlarged schematic view at E in fig. 5.

Wherein: 1. the blackboard eraser comprises a first walking frame, 2, a mounting frame, 3, a guide rail, 4, a blackboard body, 5, a second walking frame, 6, a blackboard eraser, 7, a limiting rod, 8, a marking pen, 9, a fixing block, 10, a connecting piece, 11, a push-pull rod, 12, a spring, 13, a spring pin, 14, a screwing bolt, 15, a jacking bolt, 16, a connecting column, 17, an arc plate, 18, a locking bolt, 19, an air suction pipeline, 20, a first gear, 21, a first rack, 22, a connecting rod, 23, an air suction fan, 24, a dust collection box, 25, a second rack, 26, a second gear, 27, a speed changer, 9-1 and a marking pen mounting hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, this embodiment provides a blackboard for english teaching, including blackboard body 4, be provided with marking device and erasing device on blackboard body 4, blackboard body 4's upper and lower both sides all are provided with guide rail 3, guide rail 3 all sets up along blackboard body 4's length direction, and marking device and erasing device all follow guide rail 3 slides and sets up on blackboard body 4, in order to avoid marking device and erasing device to draw guide rail 3, the blackboard both ends are provided with gag lever post 7.

The marking device comprises a first walking frame 1 arranged on a guide rail 3 in a sliding mode and a marking assembly arranged on the first walking frame 1, the marking assembly is arranged on the first walking frame 1 in a sliding mode along the vertical direction, a locking assembly is arranged between the marking assembly and the first walking frame 1, as shown in figures 2 and 3, the marking assembly comprises a mounting frame 2 and four groups of marking elements which are vertically arranged, adjacent marking elements are fixedly connected, each group of marking elements comprises a marking pen 8 and a fixing block 9, the marking pen 8 protrudes out of one side, close to a blackboard body 4, of the fixing block 9, the marking pen 8 is selected preferentially according to the material of the blackboard body 4 when in selection, the blackboard body not only represents a black board, but also can be a general name of a blackboard-writing base body, and when the blackboard body 4 is a traditional ground glass blackboard, the marking pen 8 selects chalk, when the blackboard body 4 is a white board made of plastic material, the marking pen 8 is a black mark pen. Mounting bracket 2 and first walking frame 1 sliding connection, locking Assembly sets up between mounting bracket 2 and first walking frame 1, locking Assembly is including the bolt 14 of screwing, the bolt 14 spiro union of screwing is on mounting bracket 2, and when the bolt 14 fastening of screwing, the afterbody top of the bolt 14 of screwing is tight on first walking frame 1, realizes the purpose of fixed mounting bracket 2. At least one group of marking elements are arranged on the mounting frame 2 in a sliding manner, a sliding rail is arranged on the specific mounting frame 2, at least one group of marking elements are arranged on the sliding rail in a sliding manner, the sliding direction of the marking elements is perpendicular to the direction of the blackboard body 4, the marking elements are connected with a push-pull assembly, the push-pull assembly comprises a connecting piece 10 and a push-pull rod 11, the connecting piece 10 is U-shaped, the open end of the connecting piece 10 is fixedly connected onto a fixed block 9, one end of the push-pull rod 11 penetrates through the bottom of the connecting piece 10 in a sliding manner, a limiting disc is arranged at the end, the other end of the push-pull rod 11 penetrates through the mounting frame 2 in a sliding manner, a spring pin 13 is arranged between the push-pull rod 11 and the mounting frame 2, a spring 12 is arranged between the connecting piece 10 and the mounting frame 2, when the spring pin 13 is inserted into the first limiting hole, the push-pull rod 11 pulls the scribing component to be not contacted with the blackboard body 4, and the spring 12 is in a compressed state; when the spring pin 13 is inserted into the second limit hole, the scribing component is contacted with the blackboard body 4 under the action of the spring 12, and no acting force exists between the scribing component and the push-pull rod 11.

As shown in fig. 3, in order to facilitate connection between adjacent scribing elements, in this embodiment, a connection post 16 is disposed at the upper end of the fixing block 9, a connection hole matched with the connection post 16 is disposed at the lower end of the fixing block 9, a tightening bolt 15 is disposed on a side wall of the connection hole, the connection post 16 of the fixing block 9 located at the lower side extends into the connection hole of the fixing block 9 located at the upper side, and is fixed by the tightening bolt 15.

As shown in fig. 4, in this embodiment, a scribing pen mounting hole 9-1 is formed in one side of the fixing block 9 close to the blackboard body, a locking bolt 18 is arranged on a hole wall of the scribing pen mounting hole 9-1, a tail end of the locking bolt 18 extends into the scribing pen mounting hole 9-1 and is rotatably connected with an arc-shaped plate 17, and a rubber layer is arranged on a concave surface of the arc-shaped plate 17 and used for protecting a scribing pen.

In an English lesson, when a four-line lattice needs to be drawn, the marking device is dragged to a specified position, in order to avoid that handwriting is left on the blackboard body 4 by the marking pen 8 in the dragging process, the spring pin 13 is lifted, the push-pull rod 11 is pulled outwards, the push-pull rod 11 pulls the marking assembly to be far away from the blackboard 1 through the connecting piece 10, the marking pen 8 is not in contact with the blackboard body 4, and the spring pin 13 is inserted into the first limiting hole; after the blackboard eraser reaches a specified position, the spring pin 13 is lifted, the push-pull rod 11 is slowly released, the scribing component is finally contacted with the blackboard body under the action of the spring 12, in order to avoid acting force between the push-pull rod 11 and the scribing component, the push-pull rod 11 is pushed inwards a little more until the spring pin 13 is inserted into the second limiting hole, a certain pressure exists between the scribing pen 8 and the blackboard body, if chalk is used, the blackboard eraser can be continuously attached to the blackboard body 4 by means of the unreleased elastic force of the spring 12 in the consumption process, and four-line grids can be scribed on the blackboard body by dragging the first walking frame 1, so that convenience and orderliness are realized. The first walking frame 1 is U-shaped, the middle part of the first walking frame 1 is a slide way which penetrates up and down, when the marking pen 8 needs to be slid more, the marking device slides out from the bottom end of the slide way on the first walking frame 1, and the marking pen 8 is replaced by adjusting the locking bolt 18.

As shown in fig. 5, the erasing device in this embodiment includes a second walking frame 5, a blackboard eraser 6 slidably disposed on the second walking frame 5, and a driving assembly for driving the blackboard eraser 6 to swing up and down, where the blackboard eraser 6 is slidably disposed on the second walking frame 5 along a vertical direction, an inner side surface of the blackboard eraser 6 contacts with the blackboard body 4, as shown in fig. 6, a first rack 21 is disposed on an upper side of the blackboard body 4, the driving assembly includes a first gear 20 and a connecting rod 22 for connecting the first gear 20 with the blackboard eraser 6, the first gear 20 is connected to the first rack 21, a rotation plane of the first gear 20 is parallel to a plane where the blackboard body 4 is located, an eccentric column is disposed on the first gear 20, one end of the connecting rod 22 is hinged to the eccentric column, and the other end of the connecting rod 22 is hinged to the blackboard eraser 6. When the second walking frame is dragged to slide along the guide rail, the blackboard eraser 6 is in contact with the blackboard body 4 to erase the writing on the blackboard body 4, the first gear 20 rotates in the process to drive the blackboard eraser 6 to swing up and down, the erasing effect is better, and the device is suitable for the situation that when the content of the blackboard writing is more, and the whole erasing is needed.

As shown in fig. 7, in this embodiment, a dust removing device is further disposed on the erasing device, the dust removing device includes an air suction duct 19, an air suction fan 23, and a dust collection box 24, the inner side surface of the blackboard eraser 6, which is uniformly distributed at the air suction opening of the air suction duct 19, is provided with a second gear 27, which is driven to rotate by a transmission 27, on the input shaft of the transmission 27, a second rack 25 is disposed at the lower side of the blackboard body 4, the second gear 26 is meshed with the second rack 25, the dust collection box 24 is communicated with the air outlet of the air suction fan 23, and ventilation filter screens are disposed at the two sides of the dust collection box 24. On traditional with ground glass blackboard, in carrying out the blackboard writing with the chalk, can produce a large amount of dusts when wiping the blackboard, when erasing the writing on the blackboard body, second walking frame 5 slides and drives second gear 26 and rotate, and second gear 26 rotates and drives air suction fan 23 through derailleur 27 high-speed rotation, will wipe the dust that the blackboard in-process produced through air suction pipeline 19, absorb to dust collection box 24 in, reduce the dust and spread.

The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a blackboard for english teaching, includes blackboard body, its characterized in that: the blackboard comprises a blackboard body and is characterized in that the blackboard body is provided with a line drawing device and an erasing device, guide rails are arranged on the upper side and the lower side of the blackboard body respectively, the guide rails are arranged along the length direction of the blackboard body, and the line drawing device and the erasing device are arranged on the blackboard body along the guide rails in a sliding manner.

2. The blackboard for english teaching according to claim 1, characterized in that: the scribing device comprises a first walking frame and a scribing assembly arranged on the first walking frame, the scribing assembly is arranged on the first walking frame in a sliding mode along the vertical direction, a locking assembly is arranged between the scribing assembly and the walking frame, the scribing assembly comprises four groups of vertically arranged scribing elements, adjacent scribing elements are fixedly connected, each group of scribing assembly comprises a scribing pen and a fixed block, and the scribing pen protrudes out of one side, close to the blackboard body, of the fixed block.

3. The blackboard for english teaching according to claim 2, characterized in that: the marking device also comprises a mounting rack, the mounting rack is connected with the walking rack in a sliding way, at least one group of marking components are arranged on the mounting rack in a sliding way, the sliding direction of the marking components is along the direction vertical to the blackboard, the marking assembly is connected with a push-pull assembly, the push-pull assembly comprises a connecting piece and a push-pull rod, the connecting piece is U-shaped, the opening end of the connecting piece is fixedly connected on the fixed block, one end of the push-pull rod penetrates through the bottom of the connecting piece in a sliding manner, and the end is provided with a limit disc, the other end of the push-pull rod passes through the mounting frame in a sliding manner, a spring pin is arranged between the push-pull rod and the mounting frame, a spring is arranged between the connecting piece and the mounting frame, a first limit hole and a second limit hole are arranged on the push-pull rod, when the spring pin is inserted into the first limiting hole, the push-pull rod pulls the scribing assembly to be not contacted with the blackboard, and the spring is in a compressed state; when the spring pin is inserted into the second limiting hole, the scribing component is contacted with the blackboard under the action of the spring, and acting force does not exist between the scribing component and the push-pull rod.

4. The blackboard for english teaching according to claim 2, characterized in that: the upper end of fixed block is provided with the spliced pole, and the lower extreme of fixed block is provided with the connecting hole with spliced pole assorted, and is provided with the puller bolt on the lateral wall of connecting hole, and the spliced pole of the fixed block that is located the downside stretches into to the connecting hole of the fixed block that is located the upside to fix through the puller bolt.

5. The blackboard for english teaching according to claim 2, characterized in that: one side of the fixing block, which is close to the blackboard, is provided with a marking pen mounting hole, a locking bolt is arranged on the hole wall of the marking pen mounting hole, and the tail end of the locking bolt extends into the marking pen mounting hole and is rotatably connected with an arc-shaped plate.

6. The blackboard for english teaching according to claim 1, characterized in that: the blackboard eraser comprises a second walking frame, a blackboard eraser and a driving assembly, wherein the blackboard eraser is arranged on the second walking frame in a sliding mode, the driving assembly drives the blackboard eraser to swing up and down, the blackboard eraser is arranged on the second walking frame in a sliding mode along the vertical direction, the inner side face of the blackboard eraser is in contact with a blackboard body, a first rack is arranged on the upper side of the blackboard body, the driving assembly comprises a first gear and a connecting rod used for connecting the first gear with the blackboard eraser, the first gear is connected with the first rack in a combined mode, the rotating plane of the first gear is parallel to the plane where the blackboard body is located, an eccentric column is arranged on the first gear, one end of the connecting rod is hinged to the eccentric column, and the other end of the connecting.

7. The blackboard for english teaching according to claim 6, characterized in that: the blackboard eraser is characterized in that a dust removal device is further arranged on the erasing device and comprises an air suction pipeline, an air suction fan and a dust collection box, the air suction fan is driven to rotate through a transmission on the inner side surface of the blackboard eraser with uniformly distributed air suction openings of the air suction pipeline, a second gear is arranged on an input shaft of the transmission, a second rack is arranged on the lower side of the blackboard body and meshed with the second gear, the dust collection box is communicated with an air outlet of the air suction fan, and ventilation filter screens are arranged on two sides of the dust collection box.

8. The blackboard for english teaching according to claim 1, characterized in that: limiting rods are arranged on two sides of the blackboard body.